What is the order of interphase?
G1, S, G2
Unwound DNA is called
Chromatin
What are the bases of DNA?
A -> T
G -> C
What are the bases of RNA
A-> U
G->C
Cells prefer to stay small because
smaller cells can move stuff in and out quickly
What is the role of Helicase?
To unzip the strand of DNA so replication can occur.
The two sisters of a chromosome are called
chromatids
What is a nucleotide made of (3 parts)?
Phosphate, sugar, nitrogen base
Where does the mRNA go for translation?
It leaves the nucleus and goes to the ribosome
spindle fibers are attached from the ...... to the ......
centriole to the centromere
Why do the sister chromatids get pulled apart?
So that the genetic information splits to the two seperate cells that are going to be formed.
A cancer lump is found in a woman’s lung. This lump is the direct result of _________.
Out of control cell division
A large piece of DNA that tells the cell how to make a specific protein is called a ____.
Gene
What is different about RNA and DNA? (list 3)
shape, bases, sugar, DNA passes genetic information to next generation, RNA makes proteins
What did Wilkins, Crick, Watson win?
Nobel prize, Rosalind Franklin did not get credit :(
What part of the cell cycle is this image? (give miss Novotny a second to pull it up, she was not about to pay to upload this photo)
Prophase
What happens in G1 of interphase?
The cell is completing its job before the S phase which is replication (G1 is pretty boring)
What does the term "semi-conservative DNA" mean?
each new DNA has one new strand and one original strand (go back to the DNA strand we created)
Which part is roman numeral V
Anticodon
How many codons are needed for a protein that is made of 45 amino acids?
45
At the end of mitosis, the number of chromosomes in the two new cells is _______.
the same as the number in the original cell
During metaphase, what are the two things that line up in the middle called?
Homologous chromosomes
A protein is 15 amino acids long. How many bases are needed in the DNA that codes for this protein?
45 ( remember codons are groups of 3 bases each, so 15 x 3 is 45)
Which part is roman Numeral III
amino acid
What is the correct order from LARGEST to SMALLEST size of structures?
Chromosome DNA Nucleus Nitrogen base nucleotide
nucleus, chromosome, DNA, nucleotide, nitrogen base.